Bottle-closure.



UNITED STATES PATENT OFFICE.

IVILLIAM DGUGLAS KILBOURN, OF PUEBLG, COLORADO.

BOTTLE-CLOSURE.

SPECIFICATION forming part of Letters Patent No. 632,575, datedSeptember 5, 1899.

Application filed December 3l, 1898. Serial No. 700,835y (No model.)

To @ZZ whom, it mm1/y concern:

Be it known that I, WILLIAM DOUGLAS KIL- BOURN, of Pueblo, in the countyof Pueblo and State of Colorado, have invented a new and ImprovedBottle-Closure, of which the following is a full, clear, and exactdescription.

This invention relates to improvements in closures for bottles,particularly bottles for containing liquid under gas-pressure, and theobject is to provide a closure of comparatively simple and inexpensiveconstruction that will be held tightlyin the neck of the bottle tohermetically seal the saine, but which may be easily detached whendesired.

I will describe a bottle-closure embodying my invention and then pointout the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specilication, in which similar characters of reference indicatecorresponding parts in all the views.

Figure l is a partial section and partial elevation of a bottle-closureembodying my invention. Fig. 2 is a view similar to Fig. l, but showingthe closure in its sealing position. Fig. 3 is a plan View of aclamping-ring employed. Fig. 4 is a plan view of another form ofclamping device, and Fig. 5 is a section on the line 10 10 of Fig. 4.

In carrying out my invention I employ a hollow closure 22 of yieldingmaterial-such, for instance, as soft rubber. This closure is closed atits lower end, and at its upper end it has an annular iiange 23 toengage over the mouth of the bottle, as indicated in Fig. 2. A metalbushing 24 is seated in an opening through the top wall of the closure22, and this bushing at its inner end has an annular flange whichengages against the inner side of the top wall of said closure, and atits outer side it has a head or ange 25, which bears against the outerside of said top wall of the closure. In this instance a plunger ismovable through the bushing 24. This plunger is shown as having anexpanded head 26 within the closure 22 and as having a stem portion 27,which extends through the bushing 24 and engages with an anchoring pieceor bar 28, extended transversely of the closure, and also connected tothis anchoring piece or bar 2S is a cup-shaped disk 29,

which will pass over the head 25 when the closure is in its sealingposition, Extended from the anchoring piece or bar 2S are springarms 303l, having ratchet-shaped teeth on the outer edge. Detachably connectedto the neck of the bottle below the shoulder is a locking-ring 32whichis open at one side, so that it 'may be swung around the bottleneck. Atopposite sides lugs 33 34 are extended from the ring 32 and are designedto be engaged by the ratchet-teeth of the arms 30 and 3l, respectively.

In using this device the closure 22 should normally be somewhat smallerthan the opening in the bottle-neck, so that when it is inserted and theplunger is forced downward the said plunger will force the yieldingmaterial forming the closure outward and tightly against the inner sideof the `bottle-neck. Of course in forcing the plunger downward the arms30 and 3l will be forced downward relatively to the ring 32, so that theteeth will engage with the inner bottom edges of the lugs 33 34. When itis desired to withdraw the closure, the lower ends of the arms 30 and 3lmay be swung toward each other to disengage them from the lugs. Then thearms carrying the anchoring-piece and the plunger are to be movedupward, relieving the pressure of the closure 22 against thebottle-neck.

In lieuof the clamping-ring 32, having the lugs 33 34, I may extend arms35 36 in opposite directions from the head 25 on the bushing 24, thesearms being provided, respectively, with openings 37 and 38 for thepassage of the arms 30 and 3l. In using this modification it is obviousthat the pressure of the closure 22 against the inner surface of thebottle-neck must be relied upon to hold the closure in position; but theteeth of the arms 30 and 3l by engaging with the walls of the openings37 will prevent an upward movement of the plunger relatively to theclosure.

Having thus described my invention, I claim as new and desire to securebyLetters Patentl. A bottle-closure, comprising a hollow ex- ICO tendedfrom said anchoringpiece having teeth, and a clamping-ring for engagingthe said arms, substantially as specified.

2. A bottle-closure, comprising an expansible stopper, a plungeroperating in said stopper for expanding the saine, a ring for engagingaround the neck of the bottle, and arms having connection with theplunger and adapted for locking engagement with said ring, substantiallyas specified.

3. A bottle-closure, comprising a hollow eX- pansible stopper, a metalbushing in the upper Wall of said stopper, a plunger having its steinportion movable through said bushing and also having an expanded orenlarged portion Within the stopper, an anchoring piece or bar to whichthe stein of the plunger is connected, spring-arms extended from saidWILLIAM DOUGLAS KILBOURN.

Vitnesses:

JOSEPH R. WILSON, PEARL HoLT.

